diff --git a/test/built-ins/Uint8Array/prototype/setFromBase64/detached-buffer.js b/test/built-ins/Uint8Array/prototype/setFromBase64/detached-buffer.js
index 5c01a7f43b..5055082711 100644
--- a/test/built-ins/Uint8Array/prototype/setFromBase64/detached-buffer.js
+++ b/test/built-ins/Uint8Array/prototype/setFromBase64/detached-buffer.js
@@ -26,3 +26,4 @@ var target = new Uint8Array([255, 255, 255]);
 assert.throws(TypeError, function() {
   target.setFromBase64('Zg==', targetDetachingOptions);
 });
+assert.sameValue(getterCalls, 1);
diff --git a/test/built-ins/Uint8Array/prototype/toBase64/detached-buffer.js b/test/built-ins/Uint8Array/prototype/toBase64/detached-buffer.js
index efdf072eaf..2b72f1fdf7 100644
--- a/test/built-ins/Uint8Array/prototype/toBase64/detached-buffer.js
+++ b/test/built-ins/Uint8Array/prototype/toBase64/detached-buffer.js
@@ -9,8 +9,8 @@ features: [uint8array-base64]
 
 var array = new Uint8Array(2);
 var getterCalls = 0;
-var recevierDetachingOptions = {};
-Object.defineProperty(recevierDetachingOptions, "alphabet", {
+var receiverDetachingOptions = {};
+Object.defineProperty(receiverDetachingOptions, "alphabet", {
   get: function() {
     getterCalls += 1;
     $DETACHBUFFER(array.buffer);
@@ -18,7 +18,7 @@ Object.defineProperty(recevierDetachingOptions, "alphabet", {
   }
 });
 assert.throws(TypeError, function() {
-  array.toBase64(recevierDetachingOptions);
+  array.toBase64(receiverDetachingOptions);
 });
 assert.sameValue(getterCalls, 1);
 
diff --git a/test/built-ins/Uint8Array/prototype/toBase64/option-coercion.js b/test/built-ins/Uint8Array/prototype/toBase64/option-coercion.js
index c63deca571..d3c61a8235 100644
--- a/test/built-ins/Uint8Array/prototype/toBase64/option-coercion.js
+++ b/test/built-ins/Uint8Array/prototype/toBase64/option-coercion.js
@@ -31,13 +31,13 @@ assert.sameValue(alphabetAccesses, 1);
 
 // side-effects from the getter on the receiver are reflected in the result
 var array = new Uint8Array([0]);
-var recevierMutatingOptions = {};
-Object.defineProperty(recevierMutatingOptions, "alphabet", {
+var receiverMutatingOptions = {};
+Object.defineProperty(receiverMutatingOptions, "alphabet", {
   get: function() {
     array[0] = 255;
     return "base64";
   }
 });
-var result = array.toBase64(recevierMutatingOptions);
+var result = array.toBase64(receiverMutatingOptions);
 assert.sameValue(result, "/w==");
 assert.sameValue(array[0], 255);